diff --git a/eng/SendToHelix.proj b/eng/SendToHelix.proj
index a7aa7ca3a04..8aec9ec4119 100644
--- a/eng/SendToHelix.proj
+++ b/eng/SendToHelix.proj
@@ -25,7 +25,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TestJob)' == 'Windows' AND '$(RunAsInternal)'" >
-    <HelixTargetQueue Include="windows.11.amd64" />
+    <HelixTargetQueue Include="windows.11.amd64.client" />
     <HelixTargetQueue Include="(Debian.11.Amd64)ubuntu.2004.amd64@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-11-helix-amd64-20220511124750-0ece9b3" />
     <HelixTargetQueue Include="RedHat.7.Amd64" />
   </ItemGroup>
diff --git a/src/System.Private.ServiceModel/src/System/ServiceModel/Security/SecurityAppliedMessage.cs b/src/System.Private.ServiceModel/src/System/ServiceModel/Security/SecurityAppliedMessage.cs
index fa2121a2fa9..a1d35b58368 100644
--- a/src/System.Private.ServiceModel/src/System/ServiceModel/Security/SecurityAppliedMessage.cs
+++ b/src/System.Private.ServiceModel/src/System/ServiceModel/Security/SecurityAppliedMessage.cs
@@ -5,6 +5,7 @@
 using System.IO;
 using System.Runtime;
 using System.ServiceModel.Channels;
+using System.Threading.Tasks;
 using System.Xml;
 
 using IPrefixGenerator = System.IdentityModel.IPrefixGenerator;
@@ -138,6 +139,33 @@ protected override void OnWriteBodyContents(XmlDictionaryWriter writer)
             }
         }
 
+        protected override async Task OnWriteBodyContentsAsync(XmlDictionaryWriter writer)
+        {
+            switch (_state)
+            {
+                case BodyState.Created:
+                    await InnerMessage.WriteBodyContentsAsync(writer);
+                    return;
+                case BodyState.Signed:
+                case BodyState.EncryptedThenSigned:
+                    XmlDictionaryReader reader = _fullBodyBuffer.GetReader(0);
+                    reader.ReadStartElement();
+                    while (reader.NodeType != XmlNodeType.EndElement)
+                    {
+                        await writer.WriteNodeAsync(reader, false);
+                    }
+
+                    reader.ReadEndElement();
+                    reader.Close();
+                    return;
+                case BodyState.Encrypted:
+                case BodyState.SignedThenEncrypted:
+                    throw ExceptionHelper.PlatformNotSupported();
+                default:
+                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateBadStateException(nameof(OnWriteBodyContentsAsync)));
+            }
+        }
+
         protected override void OnWriteMessage(XmlDictionaryWriter writer)
         {
             // For Kerb one shot, the channel binding will be need to be fished out of the message, cached and added to the
@@ -197,6 +225,65 @@ protected override void OnWriteMessage(XmlDictionaryWriter writer)
             writer.WriteEndElement();
         }
 
+        public override async Task OnWriteMessageAsync(XmlDictionaryWriter writer)
+        {
+            // For Kerb one shot, the channel binding will be need to be fished out of the message, cached and added to the
+            // token before calling ISC.
+
+            AttachChannelBindingTokenIfFound();
+
+            EnsureUniqueSecurityApplication();
+
+            MessagePrefixGenerator prefixGenerator = new MessagePrefixGenerator(writer);
+            _securityHeader.StartSecurityApplication();
+
+            Headers.Add(_securityHeader);
+
+            InnerMessage.WriteStartEnvelope(writer);
+
+            Headers.RemoveAt(Headers.Count - 1);
+
+            _securityHeader.ApplyBodySecurity(writer, prefixGenerator);
+
+            InnerMessage.WriteStartHeaders(writer);
+            _securityHeader.ApplySecurityAndWriteHeaders(Headers, writer, prefixGenerator);
+
+            _securityHeader.RemoveSignatureEncryptionIfAppropriate();
+
+            _securityHeader.CompleteSecurityApplication();
+            _securityHeader.WriteHeader(writer, Version);
+            await writer.WriteEndElementAsync();
+
+            if (_fullBodyFragment != null)
+            {
+                ((IFragmentCapableXmlDictionaryWriter)writer).WriteFragment(_fullBodyFragment, 0, _fullBodyFragmentLength);
+            }
+            else
+            {
+                if (_startBodyFragment != null)
+                {
+                    ((IFragmentCapableXmlDictionaryWriter)writer).WriteFragment(_startBodyFragment.GetBuffer(), 0, (int)_startBodyFragment.Length);
+                }
+                else
+                {
+                    OnWriteStartBody(writer);
+                }
+
+                await OnWriteBodyContentsAsync(writer);
+
+                if (_endBodyFragment != null)
+                {
+                    ((IFragmentCapableXmlDictionaryWriter)writer).WriteFragment(_endBodyFragment.GetBuffer(), 0, (int)_endBodyFragment.Length);
+                }
+                else
+                {
+                    writer.WriteEndElement();
+                }
+            }
+
+            await writer.WriteEndElementAsync();
+        }
+
         private void AttachChannelBindingTokenIfFound()
         {
             // Only valid when using a TokenParameter of type KerberosSecurityTokenParameters which isn't currently supported
diff --git a/src/System.Private.ServiceModel/tests/Scenarios/Binding/WS/TransportWithMessageCredentialSecurity/BasicHttpTransportWithMessageCredentialSecurityTests.cs b/src/System.Private.ServiceModel/tests/Scenarios/Binding/WS/TransportWithMessageCredentialSecurity/BasicHttpTransportWithMessageCredentialSecurityTests.cs
index 72a2654729a..3d497e65706 100644
--- a/src/System.Private.ServiceModel/tests/Scenarios/Binding/WS/TransportWithMessageCredentialSecurity/BasicHttpTransportWithMessageCredentialSecurityTests.cs
+++ b/src/System.Private.ServiceModel/tests/Scenarios/Binding/WS/TransportWithMessageCredentialSecurity/BasicHttpTransportWithMessageCredentialSecurityTests.cs
@@ -12,7 +12,7 @@ public class BasicHttpTransportWithMessageCredentialSecurityTests : ConditionalW
                nameof(Client_Certificate_Installed),
                nameof(SSL_Available))]
     [OuterLoop]
-    public static void Https_SecModeTransWithMessCred_CertClientCredential_Succeeds()
+    public static void BasicHttps_SecModeTransWithMessCred_CertClientCredential_Succeeds()
     {
         string clientCertThumb = null;
         EndpointAddress endpointAddress = null;
@@ -54,6 +54,56 @@ public static void Https_SecModeTransWithMessCred_CertClientCredential_Succeeds(
         }
     }
 
+    [WcfTheory]
+    [Condition(nameof(Root_Certificate_Installed),
+               nameof(SSL_Available))]
+    [OuterLoop]
+    [InlineData(TransferMode.Buffered)]
+    [InlineData(TransferMode.Streamed)]
+    public static void BasicHttps_SecModeTransWithMessCred_UserNameClientCredential_Succeeds(TransferMode transferMode)
+    {
+        EndpointAddress endpointAddress = null;
+        string testString = "Hello";
+        string username = null;
+        string password = null;
+        ChannelFactory<IWcfService> factory = null;
+        IWcfService serviceProxy = null;
+
+        try
+        {
+            // *** SETUP *** \\
+            BasicHttpBinding binding = new BasicHttpBinding(BasicHttpSecurityMode.TransportWithMessageCredential);
+            binding.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.UserName;
+            binding.TransferMode = transferMode;
+            endpointAddress = new EndpointAddress(new Uri(Endpoints.BasicHttps_SecModeTransWithMessCred_ClientCredTypeUserName + $"/{Enum.GetName(typeof(TransferMode), transferMode)}"));
+
+            factory = new ChannelFactory<IWcfService>(binding, endpointAddress);
+            username = Guid.NewGuid().ToString("n").Substring(0, 8);
+            char[] usernameArr = username.ToCharArray();
+            Array.Reverse(usernameArr);
+            password = new string(usernameArr);
+            factory.Credentials.UserName.UserName = username;
+            factory.Credentials.UserName.Password = password;
+
+            serviceProxy = factory.CreateChannel();
+
+            // *** EXECUTE *** \\
+            string result = serviceProxy.Echo(testString);
+
+            // *** VALIDATE *** \\
+            Assert.Equal(testString, result);
+
+            // *** CLEANUP *** \\
+            ((ICommunicationObject)serviceProxy).Close();
+            factory.Close();
+        }
+        finally
+        {
+            // *** ENSURE CLEANUP *** \\
+            ScenarioTestHelpers.CloseCommunicationObjects((ICommunicationObject)serviceProxy, factory);
+        }
+    }
+
     [WcfFact]
     [Condition(nameof(Root_Certificate_Installed),
                nameof(SSL_Available))]
diff --git a/src/System.Private.ServiceModel/tools/IISHostedWcfService/App_code/testhosts/BasicHttpsTransportSecurityMessageCredentialsUserNameTestServiceHost.cs b/src/System.Private.ServiceModel/tools/IISHostedWcfService/App_code/testhosts/BasicHttpsTransportSecurityMessageCredentialsUserNameTestServiceHost.cs
index 4dff329c664..f367b965530 100644
--- a/src/System.Private.ServiceModel/tools/IISHostedWcfService/App_code/testhosts/BasicHttpsTransportSecurityMessageCredentialsUserNameTestServiceHost.cs
+++ b/src/System.Private.ServiceModel/tools/IISHostedWcfService/App_code/testhosts/BasicHttpsTransportSecurityMessageCredentialsUserNameTestServiceHost.cs
@@ -3,6 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System;
+using System.Collections.Generic;
 using System.ServiceModel;
 using System.ServiceModel.Channels;
 
@@ -11,13 +12,25 @@ namespace WcfService
     [TestServiceDefinition(Schema = ServiceSchema.HTTPS, BasePath = "BasicHttpsTransSecMessCredsUserName.svc")]
     internal class BasicHttpsTransportSecurityMessageCredentialsUserNameTestServiceHost : TestServiceHostBase<IWcfService>
     {
-        protected override string Address { get { return "https-message-credentials-username"; } }
+        protected override IList<Binding> GetBindings()
+        {
+            return new List<Binding> { GetBufferedBinding(), GetStreamedBinding() };
+        }
 
-        protected override Binding GetBinding()
+        protected Binding GetBufferedBinding()
         {
             BasicHttpBinding binding = new BasicHttpBinding(BasicHttpSecurityMode.TransportWithMessageCredential);
             binding.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.UserName;
+            binding.Name = "https-message-credentials-username/Buffered";
+            return binding;
+        }
 
+        protected Binding GetStreamedBinding()
+        {
+            BasicHttpBinding binding = new BasicHttpBinding(BasicHttpSecurityMode.TransportWithMessageCredential);
+            binding.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.UserName;
+            binding.TransferMode = TransferMode.Streamed;
+            binding.Name = "https-message-credentials-username/Streamed";
             return binding;
         }